[ https://issues.apache.org/jira/browse/HADOOP-10533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran resolved HADOOP-10533. ------------------------------------- Resolution: Fixed Fix Version/s: 2.5.0 > S3 input stream NPEs in MapReduce jon > ------------------------------------- > > Key: HADOOP-10533 > URL: https://issues.apache.org/jira/browse/HADOOP-10533 > Project: Hadoop Common > Issue Type: Bug > Components: fs/s3 > Affects Versions: 1.0.0, 1.0.3, 3.0.0, 2.4.0 > Environment: Hadoop with default configurations > Reporter: Benjamin Kim > Assignee: Steve Loughran > Priority: Minor > Fix For: 2.5.0 > > > I'm running a wordcount MR as follows > hadoop jar WordCount.jar wordcount.WordCountDriver > s3n://bucket/wordcount/input s3n://bucket/wordcount/output > > s3n://bucket/wordcount/input is a s3 object that contains other input files. > However I get following NPE error > 12/10/02 18:56:23 INFO mapred.JobClient: map 0% reduce 0% > 12/10/02 18:56:54 INFO mapred.JobClient: map 50% reduce 0% > 12/10/02 18:56:56 INFO mapred.JobClient: Task Id : > attempt_201210021853_0001_m_000001_0, Status : FAILED > java.lang.NullPointerException > at > org.apache.hadoop.fs.s3native.NativeS3FileSystem$NativeS3FsInputStream.close(NativeS3FileSystem.java:106) > at java.io.BufferedInputStream.close(BufferedInputStream.java:451) > at java.io.FilterInputStream.close(FilterInputStream.java:155) > at org.apache.hadoop.util.LineReader.close(LineReader.java:83) > at > org.apache.hadoop.mapreduce.lib.input.LineRecordReader.close(LineRecordReader.java:144) > at > org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.close(MapTask.java:497) > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:765) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370) > at org.apache.hadoop.mapred.Child$4.run(Child.java:255) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:396) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121) > at org.apache.hadoop.mapred.Child.main(Child.java:249) > MR runs fine if i specify more specific input path such as > s3n://bucket/wordcount/input/file.txt > MR fails if I pass s3 folder as a parameter > In summary, > This works > hadoop jar ./hadoop-examples-1.0.3.jar wordcount > /user/hadoop/wordcount/input/ s3n://bucket/wordcount/output/ > This doesn't work > hadoop jar ./hadoop-examples-1.0.3.jar wordcount > s3n://bucket/wordcount/input/ s3n://bucket/wordcount/output/ > (both input path are directories) -- This message was sent by Atlassian JIRA (v6.2#6252)